APA ציטוט

Wallingford, T. (2011). VoIP Hacks. O'Reilly.

Trích dẫn kiểu Chicago

Wallingford, Theodore. VoIP Hacks. O'Reilly, 2011.

ציטוט MLA

Wallingford, Theodore. VoIP Hacks. O'Reilly, 2011.